1 Removal of Organic Surfur from Coal Extract

Abstract

To develop an efficient cleaning process of hydrocarbon resources, an ionic liquid 1,3-dimethyl imidazolium methyl sulfate was used for removal of organic sulfur from coal extract. The coal extract was prepared from Illinois No.6 with tetralin under pressurized conditions. The desulfurization extent of organic sulfur increased linearly with increasing of mass ratio of ionic liquid to coal extract. Organic sulfur of 40 % could be removed from the coal extract at the ratio of ionic liquid to coal extract of 5.0.